New features in Postini to allow for easier deployment of Google Apps Gmail


I got an email from Postini on March 17 announcing new features, including some that will make migration to Google Apps Gmail much easier. Here's the official announcement:

Dual Delivery and Gmail Options
The upcoming release will introduce Dual Delivery, a new feature for Postini that enables incoming email to be delivered to two different mail hosts. ​If mail is successfully delivered to your primary server or spooled, it will also be delivered to your secondary server.
This feature is useful for:
  • Migrating users from a legacy system to a new email solution: Dual Delivery can be used to migrate users from a legacy client to a new system, such as Gmail, without disrupting your mail flow. With access to both inboxes, users can familiarize themselves with the new system, and IT has time to troubleshoot migration issues before a full roll-out.
  • Backing up email for your users: If you are unable to access your primary mailbox for any reason or would like to give users remote email access, users can read and reply to mail on a secondary mail server. However, this will not affect data on your main server.
  • Piloting Google Apps or another mail server: You can let a subset of your users try Google Apps, or another mail server, without any interruption of mail flow.
After you've switched over to Google Apps and have migrated all of your users, you can use the "Use Google Apps Gmail" feature. This directly routes all of your mail to Gmail (sets Gmail as your primary mail server). The “Use Google Apps Gmail” feature can be found in the Delivery Manager settings in the Administration Console. For more details about using Google Apps Gmail with Postini, see the Release Notes.
Dual Delivery is targeted for release on March 24 and will be available through Delivery Manager settings in the Administration Console. For more information and for an up-to-date schedule, see the Release Notes.